StringBuilder类reverse()方法 (StringBuilder Class reverse() method)

• reverse() method is available in java.lang package.

  reverse()方法在java.lang包中可用。

• reverse() method is used to reverse this character sequence by the reverse of the sequence.

  reverse()方法用于通过反转字符序列来反转该字符序列。

• reverse() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  reverse()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• reverse() method does not throw an exception at the time of reversing this character sequence.

  reverse()方法在反转此字符序列时不会引发异常。

Syntax:

句法：

    public StringBuilder reverse();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of this method is StringBuilder, it returns a reference to this StringBuilder object.

该方法的返回类型为StringBuilder ，它返回对此StringBuilder对象的引用。

Example:

例：

// Java program to demonstrate the example 
// of StringBuilder reverse() method of StringBuilder 
public class Reverse {
public static void main(String[] args) {
// Creating an StringBuilder object
StringBuilder st_b = new StringBuilder("Java World ");
// Display st_b 
System.out.println("st_b = " + st_b);
// By using reverse() method is to reverse the characters
// of this st_b object
st_b.reverse();
// Display reversible st_b
System.out.println("st_b.reverse() = " + st_b);
}
}

Output

输出量

st_b = Java World 
st_b.reverse() =  dlroW avaJ

翻译自: https://www.includehelp.com/java/stringbuilder-reverse-method-with-example.aspx